Question: What position did Helen Clark begin on November 28th, 1981?
Paraphrase: Which position did Helen Clark begin on November 28th, 1981?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q180383 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1981')) }